Baking apparatus.



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LPPLIUJLTIDK FILED KAY 9, 1910.

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BAKING APPARATUS NUNITED sra'rns PAEENT onirica.

GEORG-E E. MAYLE, CHARLES R. MURDOCK, AND WILLAM TD. BLKNAP, O'F COLUM- BUS, GHIO.

BAKING- APPARATUS.

Specification of Lgtters Patent.

Patented Apr. 25, 191,1.

Application filed May 9, '1910. Serial No. 560,301.

To all Vwhom it may concern:

Be it known that we, Gannon E. Marmi, CHAI-:Les R. Mtmnocii, and VILLIAM D. Barr KNAP, citizens of the United States, residing at- Columbus, in the county of Franklin and State of Ohio, have inventedcertain new and useful Improvements in Baking Apparatus, of which the following is a specification.

Our invention relates to the improvement of baking apparatus and the objects ofour invention are to provide an improved apparatus for the production of baked products, in which improved means are provided for carrying a plurality of baking plates over a continuous path during the baking operation and in which improved means are provided or raising' and lowering the upper baking plates or griddle sections at predetermined intervals.

A further object ot'. our invention consists in roviding improved means for automatical `y Ydischarging a predetermined amount of batter on to the lower baking plates at. proper intervals.

These objects we accomplish in the manner illustrated in the accompanying draws ings, in which Figure 1 is a side elevation of our vimproved baking apparatus, portions of the outervvall thereofbeing broken away for the sake of clearness in illustration. Fig. 2 is a plan view. Fig. 3 isa sectional view on line m-a of Fig. 1, and, Fig. 4 is an en 'lai-ged transverse section on line a--a of Fig. 1.

lSimilar numerals refer to similar parts throughout the several views.

ln carrying out our invention, we em ploy a horizontally disposed frame compris ing parallel side piecosl and connecting end pieces 1, the frame thus formed having suitable supporting legs 9,. Journaled transversely inveach 'end ol the tir-:lino is a shutt- -l-, each of these shafts carrying a pair ol separated sprocket wheels Il. 'lhe sj'irocket wheels in one end ot the frame are connected with the correspomling sprocket wheels in the other end, by endless chain belts To these chainsl are clamped or otherwise sooured the projecting brackets 5 ol'- baking;- platt-s (i, these plates being arranged at rogularL intervals upon the chains. lCar-.h ol

these bakingr plates, has one ot' ils ends which we will term the :Forward end, prf

vided with an upwardly and thence out` which lug is pivoted or hinged as indicated at 15l to the corresponding lug 6h of the inner plate 6. The inner surface of each of the side frame members 1. has formed therewith an inwardly projecting track projection which is indicated at 1b and which comprises parallel upper and lower horizontal members having curved end connections. One of the tracks 1b has its upper horizon* tal member at a point near the center of its length, broken or separated as indicated at 1, the end portion of one of the broken sections being bent downward below the e'nd portion of the adjacent section as indicated at 1d. In a similar manner this track is also broken or separated at one end as shown at 1Vl and the terminal portion of one ofthe broken sections, is bent on the inner side of thetferminal portion of the remaining section4 as indicated at 1f. i

W'hen the baking plates of each pair are in their lowered or closed positions, the outwardly extending portions of the lugs 6* and 7a embrace opposite sides of the track 1". The upper portion of the inner surface of the rear side frame member 1, has formed on one side ot the center of its length an inwardly extending cam projection 8 which tapers toward the inner surface of the side frame toward earch end.

Beneath the lower line of'baking plates, is suitably supported lengthwise ofthe machine a tubular gas burner 9which leads from a gas supply pipo 10 which is provided with suitable gas controlling valves l1 and l2. Between the lines of baking plates is also supported a tuhulargas burnerlf which also loads from the pipe 10. One of the slmi'ts l has mounted on an outward exten sion thereof, suitable driving pulleys 14 to which motion may be imparted through a holt leading from a power wheel.

APietore describing the construction ofv ceed to explain the operation of those portions of the apparatus which have been Vheretofore described., i

Rotary motion being imparted to one of the shafts 4, it is obvious that through the connection of the sprocket wheels 3 and the connection of the chains 5 with the baking plate sections'G, a continuous traveling or carrying motion will be imparted to the baking plates and `during this operation, it is obvious that both the 'inner and upper plate sections will be heated from the burners 13 and 9, thereby baking or cooking the batter which has previously been applied to the outer surfaces of the inner baking plates in the manner hereinafter described.

It isobvious that the engagement of theplate lugs 6a and 7 with opposite sides of one of the track members 1b, will serve to hold the plates of each pair in desirable closed positions, but assuming that the plates are traveling in the direction indicated by the arrow in Fig. 1 .of the drawing..it will be understood thatas the lugs 7 of the plates 7 move outward through the opening 1e of the track, the locking action -of the track will be discontinued inasmuch as both of said lugs will be transferred to the outer side of t e track, thereby permitting the raising of the upper or outer baking plate from the lower plate for the purpose of removing the baked product and supplying new batter to the inner plate. In order to automatically effect this raising of the outer'Y plate to the position indicated in the drawmg, we have provided the elongated cani projection 8 which by contact with the lug `7b as indicated more clearly in Fig. 4 of tlie drawing, operates to raise the upper or outer baking plate to the desired open position and as said lug moves off the end of the cani projection, it will be understood that the baking plate will drop to its closed position by gravity. Mlherrt'liforward lugs ot' each pair of plates arrive at the break or opening 1.e of the track 1b, it is obvious that the plate lug 7 will pass downward through the opening 1c and again engage the underside of the track, While the lug 7b will engage the under side of the ti-ack, 'thus again locking the plate sections together.

W'lien the upper plate section is raised in the manner described` the baked product is removed from the lower section and before the upper plate is again closed downward in the manner described, the desired amount of batter is deposited on the vlower plate. Vliile it is obvious that this batter might be applied by hand, we have provided means for automatically discharging the batter on to the plate, which we will proceed to describe.

Supported al the proper point above the der opening to the nozzle 19. Ve also pro.

vide in the cylinder 16 a piston 0r plunger 2G which has an outwardly extending stem 'or rod 2T the outer end of said rod or stem being pivotally connected at 27 with one end of a horizontally disposed lever 28, the remaining end of which 1s connected wlth one end of a vertical shaft or operating rod 29 which is jeurnaled in bearing brackets 30 which project `troni the side of the machine.

l`he lower end ot a rod or shaft 2,9 carries an inwardly extending lever 31 the extremity ot' which is connected through a link 32 with a normally upright lever 33, said lever being pivoted at the center of its height to a boss Sltwhich projects from the inner side of the adjacent frame member 1. The lever 33 is normally retained in an upright or substantially upright position through the medium of a spring 37, one end of which is l connected with the frame of the machine and the remaining end to the lever 31. It will be observed that the lever 31 is thus normally retained in the path `of the plate lugs Ga and as each of these lugs comes into contact with the lever 33, the said lever is pressed downward until Vthe lug has passed out of contact therewith, this movement of the lever resulting through its connections with the rod or shaft- 29 and the connections of the latter with the piston rod 27, in pulling the piston 26 outward in the cylinder 16 to admit a charge of batter into the cylinder from the pipe 17. When the lever 33 assumes its normal position through tension of the spring 37, it is obvious that the pist-on 26 will again be moved inward, forcing the batter against the valve body 2O and preSS- ing the latter back against the spring 22 until the nozzle 19 is opened and the battel`- 'permitted to escape downward through said nozzle on to the plate G. AS soon as the batter is. thus discharged, it is obvious that both the piston 26 and the valve 20 are free 1o return to their normal positions, the valve 20 ni'ovinfr to theposition shown in Fig. 4 of the drawing. in which position it covers the opening to the nozzle 19 and the piston 26 moving outward beyond the opening to the pipe 1T and permitting a discharge of batter therefrom to the cylinder 16. f

From the construction described, it will be observed that mechanism is provided whereby batter to be baked into cake form,

is automatically discharged at intervals on vseen that simple and efficient means are herein provided for accomplishing the objects of the invention, but While the elements shown and described are well adapted to serve the purposes for which they are intended, it is to be understood that the invention is not limited to the precise construction set forth, but includes within y'its purview such changes as may be made within the scope of the appended claims.

What we claim, is 1. In a baking apparatus, the combina tion of a framework, a Hexible endless carrier mounted to travel-Within said frame,

tracks on the framework having brokenaway portions, baking plates connected With said carrier atintervals and having lugs engaging oppositel sides of the tracks, said plates being adapted to open at one of the broken-away portions of the track and close at another of said broken-away portions, means for imparting motion to the carrier, and means for subject-ing the baking plates to heat durin their traveling movement.

2. In a baking apparatus, the con1bination with a frame, a flexible endless carrier mounted to travel therein, of pairs of baking plates having lugs adapted to engage with the track-way, said track-Way having broken-away portions therein 'to cause the plates to open and close.

In testimony whereof 'we aiix our signatures in presence of tvvo Witnesses.

GEORGE E. MAYLE. CHARLES R. MURDOCK. WILLIAM D. BELKNAI.

VVitnesses:

C.' C. SHEPHERD,

A. L. PHELPS. 

